Ovulating

Jennifer • I am 34 yrs old. I have a 3 yr old son. Iam currently engaged to be married next yr. I just got off my birth control a lil over a month ago and we are hoping to have another little one running around
Weird question I had surgery almost a, year ago and since then I spot bleed like 3-4 days before my actual period is it normal or am I ovulating never had it before I had the surgery